2.08
1/2*13*11 = 71.5 square cm
Area of a triangle = 1/2 (Base x Height) Example: Width 13cm, Height 5cm, Base 12cm then; Area=1/2(12cm x 5cm) Area=6cm x 5cm Area=30cm2
As the triangle is equilateral, the height can be calculated using Pythagoras: side2 = (1/2side)2 + height2 => height = sqrt(side2 - (1/2side)2) => height = side x sqrt(3) / 2 So the area can be calculated: => area = 1/2base x height = 1/2side x side x sqrt(3) / 2 = side2 x sqrt(3) / 4 And plugging in the the side of 13cm: Area ~= 73.2cm2
The formula for area of a triangle is base times height divided by 2, A=BxH/2 So if you're referring to "20 cm and 13 cm" as the base and height, 13x20=260, 260/2=130, so the answer is 130 square cm. :D
Area = base x altitude /2 so base = 2 x area/altitude = 64/6 = 10 & 2/3 cm.
1/2*13*11 = 71.5 square cm
Area of a triangle = 1/2 (Base x Height) Example: Width 13cm, Height 5cm, Base 12cm then; Area=1/2(12cm x 5cm) Area=6cm x 5cm Area=30cm2
30 square cm because it's a right angle triangle
As the triangle is equilateral, the height can be calculated using Pythagoras: side2 = (1/2side)2 + height2 => height = sqrt(side2 - (1/2side)2) => height = side x sqrt(3) / 2 So the area can be calculated: => area = 1/2base x height = 1/2side x side x sqrt(3) / 2 = side2 x sqrt(3) / 4 And plugging in the the side of 13cm: Area ~= 73.2cm2
30cm2
The formula for area of a triangle is base times height divided by 2, A=BxH/2 So if you're referring to "20 cm and 13 cm" as the base and height, 13x20=260, 260/2=130, so the answer is 130 square cm. :D
Area = base x altitude /2 so base = 2 x area/altitude = 64/6 = 10 & 2/3 cm.
Area of a triangle = base * height / 2 Therefore the base = Area * 2 / height
What is the are for a rectangle of 13cm and 7cm
The formula for finding the area of a triangle is: Area = (base * height) / 2.
Because the area of a triangle = 0.5*base*height
The area of triangle is : 60.0